Did a little shooting tonight. Didn't have much time so there were a few things I wanted to try. First, I wanted to see if 60 grains 3f Goex would be comparable to 60 grains of Pyro P if I used a WW with the Goex. Just to see if it was sealing probrems causing 3f Goex to be inferior to the Pyro P when used with the 270 Ballet. Result. Almost the same. No improvement. The WW robbed a little bit of the velocity. It seems maybe Pyro P works better with projectiles of weight 270 grains, this corresponds to a sectional density of .196.
About 20 yards out were a bunch of tin cans, like gallon size, the kind school lunch rooms have. Since the soil is real sandy, I could not resist doing what Sharpshooter did the other day. I filled one with sand and shot it using 60 grains 3f Goex and 270 ballet. The chrony clocked 1303 fps (9 ft. out)and at 20 yards I recovered a bullet neatly mushroomed to a diameter of 13/16 of an inch.
The shadows were getting longer so I place a target at 75 yards. Loaded 80 grains 3f Goex and 385 Hornadyand Shot 2 shots and went to check on them. They were about 3" high and 3" left and separated by 1/2" so about 1" center to center at 75 yards, not sub moa but close. I adjusted windage and shot to more shot. These two landed 3" high and 1" right and were touching

. Adjusted elevation one mark. Shot and landed 2" high and 1" right. Oh yeah, getting it close. Gonna spend my next outing just shooting 3 shot groups at 75 yards.
Sun was setting now and it was cloudy making the target hard to see.Thought I would try to get a nifty mushroom from the 385s. Filled a can with sand and shot it at 20 yards. It went right through the can. But on the back side it tore the can like it was moving slow. Next shot I placed another right behing the one I was shooting. This time the second can of sand prevented the bullet from exiting the first can. I could see a pronounced bulge on the can's backside. Lifted a very warmperfectly mushroomed bullet measuring 15/16" in diameter. Velocity for this round was 1328 fps 9 ft from muzzle, impact at 20 yards.
80 grains 3f Goex yielded velocities between 1324 and 1350, averaging 1335 fps. A 2.3 % increase in energy for a 6.67% increase in charge. I think I'll just back off to 75 grains no more than I'm getting from the 80 grain charge.
Happy Hunting, Phil